Math Homework

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Why is statistical significance not necessarily of practical
Why is statistical significance not necessarily of practical important difference to a business decision? Provide an example and explain. Why do statisticians play only a limited role in deciding whet… read more
Osbert12
Master's Degree
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3. Records of randomly selected births were obtained and categorized
3. Records of randomly selected births were obtained and categorized according to the day of the week that they occurred (based on data from the National Center for Health Statistics). Because babies … read more
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Teacher
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3. Records of randomly selected births were obtained and categorized
3. Records of randomly selected births were obtained and categorized according to the day of the week that they occurred (based on data from the National Center for Health Statistics). Because babies … read more
Osbert12
Master's Degree
2,468 satisfied customers
1) When every member of a population has the chance of being
1) When every member of a population has the chance of being selected based on the probability, or frequency, of its representation in that population, you are using which type of sampling? A. Random … read more
Hasan
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Identify whether the statement describes inferential statistics
Identify whether the statement describes inferential statistics or descriptive statistics. The average age of the students in a statistics class is 22 years. Does this statement describe: inferential … read more
Stevewh
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3. Assume that the data has a normal distribution. Also assume
3. Assume that the data has a normal distribution. Also assume that the standard deviation of the population, sigma, is known. Find the critical value(s) used to test a null hypothesis: level of signi… read more
dhouse1940
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At a university with 1,000 business majors, there are 200 business students enrolled in an introductory statistics course. Of these 200 students, 50 are also enrolled in an introductory accounting cou… read more
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When would you use descriptive over inferential statistics
When would you use descriptive over inferential statistics? Provide a specific scenario and explain your rationale.… read more
mlamias
Statistical Consultant
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1) Write down the steps of a hypothesis testing for the research
1) Write down the steps of a hypothesis testing for the research question: “Whether the mean body-weight in this population is 150 lb?” Use SPSS to obtain the value of the test statistic and p-value. … read more
SusanAthena
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Master's Degree
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Help Help Help.....please........ The data below shows the
Help Help Help.....please........ The data below shows the frequency distribution for 200 test scores. Find the critical value and test statistic that would be used to test for a normal distrubtion fo… read more
Hasan
Bachelor's Degree
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1. Suppose you want to test the claim that mu 25.6. Given
1. Suppose you want to test the claim that mu > 25.6. Given a sample size of n = 42 and a level of significance of alfa = 0.1, when should you reject H with subscript((0))? Reject H with subscript(… read more
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abozer
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6. T F The calculation for obtaining a t test statistic is
6. T F The calculation for obtaining a t test statistic is the same as that for a z test statistic except that the population standard deviation is replaced by the sample standard deviation. 7. T F Be… read more
SusanAthena
Master's Degree
Master's Degree
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1) You asked ten of your classmates about their weight. On the basis of this information, you stated that the average weight of all students in your university or college is 145 pounds. This is an exa… read more
HWhelper
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Laymen often have a distrust of statistics is this justified
Laymen often have a distrust of statistics is this justified? If so, what can we do to give statistics a better name? If someone told you that statistics is a bunch of worthless lies and what could yo… read more
Greg
Master's Degree
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Determine the decision criterion for rejecting the null hypothesis
Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values of the test statistic that would result in rejection of the null hypothesis. … read more
Chirag
Master's Degree
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1-Can the formal hypothesis testing approach be used for nonparametric
1-Can the formal hypothesis testing approach be used for nonparametric tests? How are parametric and nonparametric statistics different? How are parametric and nonparametric statistics similar? 2-Unde… read more
Greg
Master's Degree
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Scott or Gregf...http //www.mediafire.com/ wxjm30w303o
Scott or Greg, can you please help me? Need this asap. .http://www.mediafire.com/?wxjm30w303o ....Need ASAP...300 words in a section of paper I am having a problem with.… read more
Greg
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